Nut-lock.



W. E. WALKER.

NUT LOCK.

APPLIOATION FILED NOV.11,1912.

1,099,410. Patented June 9,1914.

Inventor Attorneys mm W 00.. mm 17"- UNITED STATES PATENT oFFioE.

WILLIAM; E. WALKER, 0F BORDEAUX, 'WASHINGTON.

I NUT-LOCK.

To all whom it may concern:

Be it known that 1, WILLIAM E. W'ALKER, a citizen of the United States,residing at Bordeaux, in the county of Thurston and State of Washington,have invented a new and useful Nut-Lock, of which the followlng is aspecification,

The present invention appertains to nut locks, and particularly towashers which are provided with means for constra ning them againstrotation on a bolt and wlnch are also provided with means for engagementwith the nut to lock the nut against turnlng.

It is the object of the present invention to provide a device of thischaracter which shall be simple, substantial, compact and 1nexpensive inconstruction, and wh1ch shall be convenient, efiicient and serviceable1n 1ts use.

To the above ends, the present invention resides in the novelconstruction and combination of parts hereinafter fully set fort-h andclaimed, it being understood that this device is susceptible ofalterations in its details within the scope of what is claimed withoutdeparting from the spirit of the invention.

The preferred embodiment of the invention has been illustrated. in theaccompanying drawing, wherein Figure 1 is a perspective view of the mainwasher. Fig. 2 is a sectional view of the complete device taken on line22 of Ijig. 1, showing the device as in use. F1g.3 1s a, plan View ofthe washer looking toward its inner face. Fig. 4: is an enlargedperspective view of the supplemental washer, partly broken away,

Referring specifically to the drawlng, the present invention embodies arelatively thick washer 4:, turned or otherwise fashioned from suitablemetal, and provided on its inner face with a series of radiallyextending ratchet teeth 5. The other or outer face of the washer has itsedge or margin beveled as indicated by the numeral 6, and an innerannular rabbet 7 is provided in the said face of the washer around theopening in the washer, the said rabbet beingcomparatively wide andshallow. This washer is also provided with a pair of diametricallyopposite channels 8 extending fromthe rabbet 7 to the beveled edge 6,said channels being preferably wide and being of a depth equal to thedepth of the rabbet 7. The channels are Specification of Letters Patent.

Application filed November 11, 1912.

Patented June 9, 1914.

Serial No. 730,741. f

relatively smaller in width than the diameter of the rabbet and projectradially to the periphery or margin of the washer 4.

In connection with the washer 4:, there is employed a. supplementalwasher 9, which is constructedof sheet metal or other flexible materiaL,This supplemental washer 9 is of a size and thickness to fit snuglywithin the rabbet 7 so as to be flush with the outer face of the washerat, and the supplemental washer is provided with a pair of diametricallyopposite extensions 10 fitting in the respective channels 8 and havingtheir free ends projecting to the peripheral bevel 6 flush with theperiphery of the washer-.4. The extensions .10 of the supplementalwasher 9 are also flush with the outer face of the washer at and fitsnugly in the channels 8.

In use, the main washer 4: is passed over the threaded end of the boltin the usual fashion and brought against the object to be clamped, thesupplemental washer also being passed over the threaded end of the boltand being fitted into the rabbet 7 of the main washer, in which event,the usual nut may be threaded onto the bolt. As the nut is, forcedinwardly, the main washer is pressed tightly against the object held, sothat the ratchet teeth 5 bite or engage the object in order to hold themain washer against rotation on the bolt. The free ends of theextensions 10 may then be bent against the sides of the nut in order tohold the nut against rotation or displacement. The nut is heldagainstrotation inasmuch as the inner ends of the extensions 10 fitwithin the inner ends of the channels 8 under the nut while the freeends of the extensions 10 rest against the sides of the nut. Thesupplemental washer in fitting within the rabbet 7 is constrainedagainst shifting transversely of the washer so as not to injure thethreads of the bolt, and it will also be noted that the beveled edge 6of the main Washer will facilitate bending the free ends of theextensions of the supplemental washer into engagement with the nut. Thebending of the extensions 10 will be facilitated by run,- ning a knifeor other implement around the bevel 6 so as to engage under the freeends of the extensions. Thus, the free ends of the extensions may belifted or raised so that they may be readily bent against the sides ofthe nut.

From the foregoing, taken in connection with the drawing, the advantagesand capabilities of the present invention will be evident, and it willbe apparent'that the object.

aimed at has been carried out in a satisfactory manner, the presentdevice providing a desirable one for the purposes for which it isdesigned. I

Particular attention is directed to the fact that the washer 4'ismounted on the bolt back of the nut and that the rabbet 7 and.

supplemental washer 9 are of less diameter than the nut, whereby thevsupplemental washer will be housed completely under the tensions arebent intermediate their ends,

whereby they may accommodate various sizes or styles of nuts.

Having thus described the invention, what is clalmed as new is Arelativelythick washer having an outer annular rabbet around itsopening, an outer peripheral bevel, and a plurality of radial channelsextending from the rabbet to the periphery, the channels beingrelativelysmaller in width than the diameter ofthe snugly in the rab'bet andhaving a plurality .30 rabbet, and a sheet metal washer fitting ofradial extensions fitting snugly within 7 the aforesaid channels, thefree ends of the extensions being flush with the peripheryot therelatively thick washer. c

"In testimony that I claim the foregoing as my own, I have heretoaflixed my signa ture in the presence of two witnesses.

WILLIAM E. WALKER.

Witnesses: V 1

E. H. VVALTERs, S. O. MUMBY.

Copies of. this patentmayb'e obtained for five cents each, by addressingthe FGommissioher of Patents,

' Washington, D. G."

